US2989581A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Color television receiver signal transfer system
Assignee: RCA Corp
•
Filing: 1954-04-23
•
Granted: 1961-06-20
•
Expires: 1974-04-23
Abstract
No abstract record available.
Inventors
- 👤 Eugene O Keizer
- 👤 Jr Leslie L Burns
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:12
CPC Classifications
H; H04; H04N; H04N11/00; H04N11/06; H04N11/12; H04N11/14; H04N11/146; H03; H03F; H03F1/00; H03F1/42; H03F1/48; H03F1/50
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1945096A
Cited
US2224200A
Cited
US2662978A
Cited
US2738380A
Cited
US2635140A
Cited
US2666806A
Cited
US2680147A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-19 | 1964-12-19 | 1965-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-19 | 1968-12-19 | 1969-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-19 | 1972-12-19 | 1973-06-20 | $7700.00 | Window Closed / Lapsed |